Hydrocarbon-injector.



No. 737,299. PATENTED AUG. 25. 1903..

W. W. TUUK & A A. LOW.

HYDROGARB ON INJECTOR.

APPLICATION FILED OUT. 7. 1901.

N0 MODEL.

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V UNIT D STATES Patented August 25, 1903. '4

PATENT OFFICE.

WILLIAM W. TUCK, OF RICHMOND HILL, AND ABBOT AUGUSTUS LOW, OF BROOKLYN, NEW YORK, ASSIGNORS TO SAID LOW.

HYDROCARBON-INJECTOR.

SPECIFICATION forming part of Letters Patent N 0. 737,299, dateclAugust 25, 1903.v Application filed October 7, 1901. Serial No. 77.771. (No model.)

To all whom it may concern.-

residing at Richmond Hill, Queens county,

and ABBOT AUGUSTUS Low, residing at the city of New York, borough of .Brooklyn, county of Kings, State of New York, citizens of the United States, have invented certain new and useful Improvements in Hydrocarbon-Injectors, of which the following is a specification, sufticient to enable others skilled in the art to whichthe invention appertains to make and use the same.

Our improvements relate to injectorsused for introducing kerosene or hydrocarbon fuel into the ignition-chamber of gas-engines.

As heretofore constructed the injectors have been made with a single axial. needle jet or spray passage. Asa result the hydrocarbon is precipitated more or less against the opposite inner wall of the combustionchamber, a result that is not desirable, since it cools that particular spot, causing uneven expansion and combustion of the vapor.

The object of our invention is to elfect the complete diffusion or distribution of the charge of hydrocarbon as near as-p'ossible within the combustion-chamber, and this we accomplish by forming the tip of the injector with a plurality of needle spray-passagesinclined at angles with relation to each other.

tion within the ignition-chamber.

In the accompanying drawings, Figure 1- shows a horizontal section of our improved injector, together with a portion of the wall i of the ignition-chamber, of globular formh Fig. 2 is a detail view of the valve-stem 'removed. Fig. 3 is a front view, upon an enlarged scale, of our improved injector-tip; Fig. 4, a section upon plane of line 4 4, Fig. 3. 'Fig. 5 is a view of the inner side of .the tip. Fig. 6 is a-view similar to Fig. 4, show- 7 ing the needle spray-passages at opposite Be it known that we, WILLIAM W. TUOK,

angle.

A represents the body of the casing of the injector, applied to the shell B of an ignitionchamber of a gas-engine.

a is the seat closed by the valve 0, the stem 0 of which is formed with grooves c to facilitate the passage of oil' from the rear of the casing into which the oil is forced under pressure. through the inlet a S is a spring by which the valve is held yielding against the seat.

The novelty in our construction consists in the tip T, which screws into the inner end of the injector in front of the valve 0. It is formed with two (or. more) inclined needle spray-passages t t. In the tip shown in Figs.

,1 and 4 of the drawings two of these needle spray-passages are shown as converging to a center (1, which coincides with that of the ignition-chamber B, partly indicated. It is obvious that three or any plural number of-such needle spray-passages may be formed in the tip as may be desired, with like result. This tip is formed at one end with a circular recess T and with enlarged openings connecting said recess with the spray-passages. This provides for the steady flow of the oil, and the recess provides for the oifset head a of the valve without interfering-with the flow of the 'oil through the passages in the tip.

In the form of tip shown in Fig. 6 the needle spray-passages diverge at an angle, in'which case the hydrocarbon is diverted against different points of the inner wall of the ignitionchamber, thereby distributing the spray more effectively and avoiding undue cooling of the walls at any point. The tip is formed with the usual key-openings t t or other mechanical exped-ients for facilitating its introduction or removal into the end of the casing A,

i What we claim as our invention, and desire to secure by-Letters Patent, is K t The combination with an-ignition chamber of a gas-engine and an in jector-casing extending into the interior of said chamber and having threaded inner end, of a tip having exterior threads engaging the interior threads of the inner end of said casing and formed with a plurality of needle spray-passages converging to a common center coinciding with the center of the ignition-chamber, said caswith an oifset head,allsubstantially as shown ing being formed with a seat a adjacent the and described. outer terminal of the threads, a Valve-stem WILLIAM W. TUCK.

disposed longitudinally of said casing and ABBOT AUGUSTUS LOW. 5 formed with longitudinal grooves, and a Witnesses:

valve on the inner end of said stem fitted to D. W. GARDNER,

said seat and its inner face being provided JOHN KIRN. 

